Common name: robust sea cucumber

General information

The Robust Sea Cucumber, Colochirus robustus, is a species of sea cucumber that is often overlooked in the reef aquarium hobby but can be a beneficial addition to the cleanup crew. These echinoderms are known for their ability to process large amounts of substrate, helping to keep the sand bed clean and aerated.

Care

Colochirus robustus is relatively easy to care for, provided they have a sufficient amount of fine sand and detritus to sift through. They are non-aggressive and can coexist with most tank inhabitants. However, they are sensitive to high levels of nitrates and sudden changes in water parameters, so stable conditions are essential.

Reproduction

In the wild, sea cucumbers like Colochirus robustus reproduce by releasing sperm and eggs into the water column, a process known as broadcast spawning. In the aquarium, reproduction is rare, but with optimal conditions, it is possible to observe this fascinating behavior.

Habitat

Colochirus robustus is found in the Indo-Pacific region, typically in shallow waters on sandy bottoms or seagrass beds. They are not reef-dwellers by nature but can adapt to life in a reef aquarium if provided with the right conditions.